Centering device for spindles.



J. B. NAINTBAU & E. O. RICH.

OENTBRING DEVICE FOR SPINDLES.

APPLIUATIOH FILED JUNE 10, 1908.

Patented Mar. 22, 1910.

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ANDRZW a GRARAM 00L PNntb-uTHOGnAPHERS. WASHINGTON J. B. NAINTEAU & E.0. RICE.

(ENTERING nnvxcn FOR SPINDLES.

APPLICATION FILED JUNE 10, 1908. v 952,93 1 r Patented Mar. 22, 1910.

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/////////////// UM HHWHMMV UNITED STATES PATENT OFFICE.

JOHN B. NAINTEAU AND EDGAR G. RICH, OF CENTRAL FALLS, RHODE ISLAND.

enumera e DEVICE non SPINDLES.

7 Specification of Letters Patent.

Application filed June 10, 1908.

Patented Mar. 22, 1910. Serial No. 437,694.

To all whom it may concern:

Be it known that we, JOHN B. NAINTEAU and EDGAR O. RICH, citizens of theUnited States, residing at Central Falls, in the county of Providenceand State of Rhode Island, have invented certain new and usefulImprovements in Centering Devices for Spindles, of which the followingis a specification.

Our invention relates to improvements in setting or adjusting a spindlebase in the lower or stationary rail of any ring spinning frame ortwisting frame, and the object of our improvement is to provide aconvenient and accurate method of setting a spindle base so that thespindle will revolve in the cenlter of the ring in the upper ortraveling ra1 lVe attain these objects by means of two flanged bushings,one fitting inside of the other, and the bushings being separated by twowashers.

1 is a top plan View of the smaller bushing; Fig. 2 is a verticalsection of the same on the line 1-2 of Fig. 1; Fig. 3 is a top plan viewof the larger bushing; Fig. 4t is a vertical section of the same on theline 34 of Fig. 3; Fig. 5 is a top plan view of one of the washers; Fig.dis a vertical section of the same on the line 5-6 of Fig. 5; and Fig. 7is a vertical section through the center of spindle, spindle base, lowerrail and upper rail of a ring spinning frame, showing the inventionapplied thereto.

The s indle base, A, extends through a hole in t e lower rail, F, and issupported on the rail by a shoulder on the spindle base A. The spindlebase A, is provided with threads below the rail F, on which a nut G, isreceived for holding the spindle base in position. A tapered hole J, isformed in the spindle base for supporting the spindle H. At the lowerend of the spindle a bearing is provided for rotating the spindle by thedriving band, I. The upper, or traveling rail K, is of channel shape incross section. travels vertically from top to bottom of bobbin, andcarries a ring L, the center of which should exactly coincide with thecenter of the spindle H, in order that the yarn may spin true and even.is found to be very diflicult to arrive at this result for two reasons,owing to the top of the lower rail F, not being absolutely true, thuscausing the spindle H, to deviate from In setting up a machine, it

a true vertical line, and the center of the ring in the traveling rail,K, is not always exactly above the center of the hole in the lower railF. i

A flanged bushing B is provided with a flange 3 of uniform thickness,having slots 4 therein for adjusting the bushing. A vertical barrel 5 ofuniform varying thickness from one side to the other, extends from theflange having one thick side and one thin side. The lower portion of theouter surface of the barrel 5 is tapered toward the inside, and the holein this bushing is designed to be an exact fitfor the spindlebase. Asimilar flanged bushing E is provided with a flange 6, having slots 7 topermit of adjustment, and a barrel 8 extends from the flange, having auniform varying thickness from one'side to the other, thus having onethick side and one thin side. The outer surface of this barrel isdesigned to fit in the hole in the lower rail F, of a spinning frame,while See the accompanying draW1ngs:F1gure;

the hole in this bushing just fits the vertical barrel of the smallerbushing B.

C and D are washers, having slotted edges 9 to admit an adjustingwrench, and having a uniform varying thickness from one side to theother, thus having one thick side and one thin side. The hole in thesewashers just fits the outside of the barrel of the smaller bushing B.

The invention is assembled by placing the smaller bushing B inside thelarger bushing E, with the two washers, C and D, placed between theflanges of the bushings. When the parts are so adjusted that the thickside of the washer C is above the thin side of washer D, and so that thethick side of bushing B is against the thin side of bushing E, theinvention has the effect only of a flanged bushing, having a uniformthickness of flanges and barrel.

The method of setting or adjusting the spindle is as follows :Thespindle setter is assembled and then placed in the hole in the lowerrail F, which it should fit exactly. The spindle base A, is then placedin the spindle setter, and the nut G tightened. The spindle H, ismounted on the spindle base, and inserted in the ring L, when it is adjusted by means of two wrenches by turningthe bushings, B and E, inopposite directions until the spindle is centered. This adjustment movesthe spindle H, and spindle base A, horizontally as a whole, withoutchanging the inclination of the vertical center line of the spindle.After this adjustment is made, the traveling rail is moved to itshighest position, and the two washers, G and D, are turned in oppositedirections thus changing the inclination of the vertical position of thespindle suificiently to bring the top of the spindle to the center ofthe ring L. The taper on the outside of the lower portion of the bushingB allows this inclination to be made without changing the position ofthe bushing E. Having completed this adjustment, the nut G is tightenedand the adjustment is finished.

It is evident that more or less slight changes might be resorted to inthe form and arrangement of the several parts described withoutdeparting from the spirit and scope of our invention, and hence we donot wish to limit ourselves to the exact construction herein set forth,but

Having fully described our invention, what we claim as new and desire tosecure by Letters Patent, is

1. The combination with a rail having a cylindrical orifice therein, aspindle base having a cylindrical portion which extends through saidorifice, of a centering device composed of eccentrically telescopingmembers assembled rotatably, one of which fits the orifice, and theother the portion of the spindle base within the orifice, said membersfitting each other throughout a portion of their length, and divergingthroughout the remaining portion, and cam-faced washers interposedbetween a part of the base and the rail, and rotatable, whereby theturning of the washers causes a rocking of the spindle base.

2. A centering device for spindles comprising flanged bushings, one ofwhich is adapted to turn within the other, the internal and externalbores of these bushings being eccentric to each other, the inner bushingcapable of being rocked within the outer bushing, and cam-faced washersinterposed between the flanges of the bushings, said washers adapted tobe turned, whereby to rock the inner bushing.

3. The combination with a rail having a cylindrical orifice therein, anda spindle base having a cylindrical portion which extends into theorifice, and an enlarged portion of greater diameter than the diameterof the orifice, of a centering device comprising a plurality of membersfilling the space between the enlarged portion of the base and the rail,and the cylindrical portion of the base and the wall of the orifice inthe rail, two of said members eccentrically telescoped, and one capableof turning and being rocked with respect to the other, and means fittedto turn upon the smaller telescopic member, and constructed and adaptedwhen turned to rock said member.

4. The combination with a rail having a cylindrical orifice therein, anda spindle base having a cylindrical portion which extends into theorifice, and an enlarged portion of greater diameter than the diameterof the orifice, of a centering device comprising a plurality of membersfilling the space between the enlarged portion of the base and the rail,and the cylindrical portion of the base and the wall of the orifice inthe rail, two of said members eccentrically telescoped, and one capableof turning and being rocked with respect to the other, and means fittedto turn upon the smaller telescopic member, and constructed and adaptedwhen turned to rock said member, and means on the lower end of the basefor locking the base securely to the rail when adjusted by the centeringdevice.

5. The combination with a rail having a ing bushings, one adapted toturn within the I other and capable of being rocked therein, saidbushing fitting a portion of the spindle base, and the other bushingfitting the orifice in the rail, the bushings having flanges of uniformthickness throughout, said flanges being notched at their outer edges toreceive a wrench, and cam-faced washers interposed between the flangesand rotatably mounted on the inner bushing, and provided with notchedouter edges adapted to receive a wrench whereby they are turned.

6. In a centering device for spindles, the combination with a spindlerail having vertical bores therein, of a spindle bolster, and a seriesof flanged, eccentrically bored telescoping bushings, the inner memberof which is externally tapered to form a rock-

